Unavailable
S1: The journal itself returned an I/O error during the verify call.
Distinguishes a transient storage failure (e.g., DB timeout, network error) from actual chain tampering. Callers can retry on Unavailable but should alert on Tampered.
S1: The journal itself returned an I/O error during the verify call.
Distinguishes a transient storage failure (e.g., DB timeout, network error) from actual chain tampering. Callers can retry on Unavailable but should alert on Tampered.